Cutting mechanism.



N0 MODEL.

PATENTED SEPT. a, 1903. J. WEST. CUTTING MECHANISM.

APPLIUATION FILED JUNE 28, 1902.

2 SHEETS-SHEET 1.

llllllllllllllll IiHlllllilllllllllllllllllflllllIlllllllllllIillllllllllllllllllllllillllllllllllllllllllllllllll PATBNTED SEPT. 8, 1903.

Y ST-F- CUTTING ME UHANISM. APPLIOATION FILED JUNE 28} 1902.

2 SHEETS-SHEET 2.

H0 MODEL.

NITED' STATES Patented September 8, 1 903.

. PATENT OFFICE.

JAMES WEST, OF BROOKLYN, NEW YORK, ASSIGNOR TO SECURITY PAPER SPECIALTY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CUTTING MECHANISM.

SPEGJZFICATION forming part of Letters Patent No. 738,380, dated September 8, 1903.

' Application filed June 28, 1902. Serial No. 113,658. (No model.)

To aZZ whom it may concern:

Be it known that 1, JAMES WEST, of Brooklyn, in the county of Kings, and in the State of New York, have invented a certain new and useful Improvement in Outting Mechanisms; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings, in Which- Figure 1 is a view, partly in section and side elevation, of a portion of a machine for making envelops having my cutting mechanism. Fig. 2 is a cross-section of the same with parts in elevation. Fig. 3 is a detail view in perspective of the cutter-cylinder. Fig. 4 is a longitudinal sectionof the same, and Fig. 5

' is a view of an envelop-blank cut by the cut- 5o cylinder at each end has two portions of ting mechanism shown in the preceding figures.

The object of my invention is to provide a mechanism for cutting thin sheet material as, for example, paper-pf simple construction, rapid operation, and fitted especially for the formation of edges or contours other than straight; and to such ends my invention consists in the cutting mechanism constructed substantially as hereinafter specified and claimed.

For illustrating my invention, I show it in the drawings embodied in a cutting mechanism forming part of an envelop-machine, said mechanism being adapted to cut the somewhat irregular contour or form of the edges of-the two side flaps of the envelop and the side edges of the two end flaps of the envelop, the product of the cutting mechanism being illustrated in Fig. 5 of the drawings, in which a and a designate the two side flaps and b and b the two end flaps.

Mounted in the side beams C of the frame of the envelop-machine is a'shaft D, that is revolved from the driving-shaft of the ma chine by a train of gearing, which need not be described, and fixed tosaid shaft is a roll or cylinder each of whose ends has a corner or edge that is adapted to cut and has a form or contour that corresponds with that of the edge of one of the side flaps a and one of the side edges of each of the end flaps b. The

e and secured to the body E, the cutting edges being the outer ends of the two sleeve-sections, which accordingly are preferably made of hardened steel. The outer end of each sleeve-section is blunt, the surface thereat preferably meeting the peripheral surface of thesection at a right angle, so that a sharp edge or corner will be formed. The angle of such surfaces, however, can be varied as desired, and of course the contour or form of the end-will be such as to produce the outline or shape to the edge of the sheet material that is desired. O ne of the valuable features of my invention is the complete adaptability of the cutting edge to the contour or outline that itis desired to give the material to be cut. The sections F are attached to the main or body portion E by screws or other separable connections. Bythe construction described, wherein the cutting edges are on removable. sections, a cutting edge of one form can be readily substituted for another and each cutting edge of the cylinder maybe removed and a'different one substituted for it independently of the other cutting edge of the cylinder.

Extending across each corner or cuttingedge of the cylinder is a roller G, preferably of hardened steel, that is journaled upon a rod H. The latter at one end is pivoted between the forks of a bolt 1, that is bifurcated at one end and is adjustably attached to a.

bar J, fastened to the machine-frame beams C by a nut on each side of the latter. Atits other end each rod H has connected to it one end of a spring K, whose other end is connected to a relatively fixed part of the ma chine-frame, by which spring the roller is held yieldingly against the adjacent cutting edge of the cylinder. The angle or inclination of the rollers G with reference to the periphery of the cutting-cylinder may be varied from a very acute angle to or beyond a right angle. Change in the angle of the rollers can be made by adjustment of the bolts I.

In the operation of the cutter illustrated the sheet material, wider than the cuttingcylinder, so that its edges project beyond the same, is carried along by the revolution of said cylinder and, passing between it and the roller G, is pressed'by the latter against the sharp edges or corners of the cylinder, and thereby out, each roller following the contour of the cylinder edge with which it coacts.

For the removal of the severed edges of the sheet material from the cutter a light springrod L extends past and in contact with each end of the cutting-cylinder in the path of the severed or cut-off edge portion of the sheet, the rod being under such tension as to cause its portion next the cylinder to move upward and against the end of the cylinder. Above the rods L is a cross-bar M, having on its under side a plate m, against which the rods L bear.

It is evident that in cutting sheet material requiring only one edge to be given aspecial configuration or coutounbut a single cutting edge of the cylinder and a single roller to cooperate therewith need be used.

Although I have described my invention as embodied in an envelop-machine, it is to be understood thatI do not restrict myself to its use in such a machine nor to itsuse in cutting paper, as other sheet material than paper can be cut.

Having thus describedmy invention, What I claim is- 1. .In acutting mechanism, the combination of two parts, one of which has an edge of the contour to be imparted to' the material to be cut, and the other of which extends across and presses the material to be out against such edge, and follows along the same in a cutting operation.

ing relative movement of said edge and said roller.

4. In a cutting mechanism, the combination of a cutting-cylinder, having an edge formed by a portion of its periphery, and a surface at an angle thereto, a cutting-roller which crosses such edge, and means for pressing the periphery of said roller against said edge.

5. In a cutting mechanism, the combination of a cutting-cylinder having a plain cylindrical surface whose edge corresponds to an irregular pattern desired to be out, and

means for pressing the material to be out.

against the said edge.

6. In a cutting mechanism, the combination of a cutting-cylinder having a plain cylindrical surface whose edge corresponds to an irregular pattern desired to be cut, a cuttingroller, and means for pressing said roller against said edge.

7. In acutting mechanism, the combination of a cutting-cylinder having a plain cylindrical surface whose edge corresponds to an irregular pattern desired to be cut, a cuttingroller, and means for yieldingly pressing said roller against said edge.

8. Inacuttingmechanism, the combination of a cutting-cylinder, an edge of whose periphery corresponds to the line desiredto be cut, a pivoted bearing-rod, a roller on said bearing-rod, and a spring for pressing said roller against said edge.

9. In a cutting mechanism, the combination of a cutting-cylinder, whose periphery is of the shape desired to be cut, bearing-rods pivoted over said periphery, cutting-rollers mounted on said bearing-rods, and springs engaging said bearing-rods, and yieldingly pressing said cutting-rollers against the edges of said periphery.

10. In a cutting mechanism, the'combination of a cutting-cylinder, whose periphery is of the shape desired to be cut, bearing-rods, pivots over said periphery, said pivots being adjustable with reference to said cutting-cylinder, cutting-rollers mounted on said bearing-rods, and springs acting on said bearingrods, and yieldingly pressing said cuttingrollers against the edges of said periphery.

In testimony that I claim the foregoingI have hereunto set my hand.

JAMES WEST.

Witnesses:

EDWARD STEVENSON, T. WM. KIENAST. 

